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NHTSA ID Number: 10220363

Manufacturer Communication Number: SM2202

TSB/Document Date: 2022-09-22


Summary

SM2022 EV Maintenance and Service Documentation This Service Memorandum is to announce information on CumminseBay logo Power Electric buses now available at Quickserve Online. Dealer must have access to Quickserve to obtain these service maintenance and repair procedures.


SPN / FMI CumminseBay logo Description
(for Blue Bird Diagnostic display)

P/S Pump Inverter ‐ Bad Device
P/S Pump Inverter ‐ Root Cause Not Known

P/S Pump Inverter ‐ Abnormal Signal

Air Compressor Inverter ‐ Cause Unknown
Air Compressor Inverter ‐ Out of Cal
Air Compressor Inverter ‐ Rate of Change
Air Compressor Inverter ‐ Special Notes
Air Compressor Inverter ‐ Mod Severe
Air Compressor Inverter ‐ Least Severe
Air Compressor Inverter ‐ Least Severe

CumminseBay logo
Fault Code
#

Lamp (Service
Indicator)

J1939
SPN

J1939
FMI

13529

Stop (Solid)

521340

7

13531

Warning (Solid)

521340

8

13532

Warning (Solid)

521340

31

13533

Stop (Solid)

521341

12

13534

Warning (Solid)

521341

11

13535

Warning (Solid)

521341

13

13536

Stop (Solid)

521341

10

13537

Warning (Solid)

521341

14

Air Compressor High Voltage DC/AC Inverter ‐ Condition Exists
Air‐Conditioner Compressor High Voltage DC/AC Inverter ‐ Bad
Intelligent Device or Component
Air‐Conditioner Compressor High Voltage DC/AC Inverter ‐ Root Cause
Not Known
Air‐Conditioner Compressor High Voltage DC/AC Inverter ‐ Out of
Calibration
Air‐Conditioner Compressor High Voltage DC/AC Inverter ‐ Abnormal
Rate of Change
Air‐Conditioner Compressor High Voltage DC/AC Inverter ‐ Special
Instructions

Stop (Solid)

521341

16

Air‐Conditioner Compressor High Voltage DC/AC Inverter ‐ Data Valid
But Above Normal Operating Range ‐ Moderately Severe Level

TMS A/C Comp Inverter ‐ Mod Severe

13538

Warning (Solid)

521341

15

Air‐Conditioner Compressor High Voltage DC/AC Inverter ‐ Data Valid
But Above Normal Operating Range ‐ Least Severe Level

TMS A/C Comp Inverter ‐ Least Severe

13539

Warning (Solid)

521341

17

Air‐Conditioner Compressor High Voltage DC/AC Inverter ‐ Data Valid
But Below Normal Operating Range ‐ Least Severe Level

TMS A/C Comp Inverter ‐ Least Severe

13541

13542

Stop (Solid)

521341

7

13543

Warning (Solid)

521341

8

13544

Warning (Solid)

521341

31

13776

Warning (Solid)

1684

3

13777

Warning (Solid)

1684

4

Air‐Conditioner Compressor High Voltage DC/AC Inverter ‐ Mechanical
System Not Responding or Out of Adjustment
Air‐Conditioner Compressor High Voltage DC/AC Inverter ‐ Abnormal
Frequency or Pulse Width or Period
Air‐Conditioner Compressor High Voltage DC/AC Inverter ‐ Condition
Exists
Auxiliary Heater Coolant Pump Request ‐ Voltage Above Normal or
Shorted to High Source
Auxiliary Heater Coolant Pump Request ‐ Voltage Below Normal or
Shorted to Low Source

13778

Warning (Solid)

1557

3

Fan 2 Drive State ‐ Voltage Above Normal or Shorted to High Source

13779

Warning (Solid)

1557

4

13812

Warning (Solid)

516230

7

Fan 2 Drive State ‐ Voltage Below Normal or Shorted to Low Source
Charge port receptacle port 1 ‐ Mechanical System Not Responding or
Out of Adjustment

14164

Warning (Solid)

8234

15

HVESS Thermal Management System Heater Status ‐ Data Valid But
Above Normal Operating Range ‐ Least Severe Level

14165

Warning (Solid)

8234

17

14166

Warning (Solid)

1683

15

14167

Warning (Solid)

1683

17

14169

Warning (Solid)

1677

17

HVESS Thermal Management System Heater Status ‐ Data Valid But
HV Batt Heater Status ‐ Below Normal
Below Normal Operating Range ‐ Least Severe Level
Auxiliary Heater Mode Request ‐ Data Valid But Above Normal
Aux Heater Mode Request ‐ Above Normal
Operating Range ‐ Least Severe Level
Auxiliary Heater Mode Request ‐ Data Valid But Below Normal
Aux Heater Mode Request ‐ Below Normal
Operating Range ‐ Least Severe Level
Auxiliary Heater Mode ‐ Data Valid But Below Normal Operating Range ‐
Aux Heater Mode ‐ Below Normal
Least Severe Level

14186

Warning (Solid)

13159

18

EVSE DC Charging Voltage Maximum ‐ Data Valid But Below Normal
Operating Range ‐ Moderately Severe Level

SPN / FMI CumminseBay logo Description

Air Compressor High Voltage DC/AC Inverter ‐ Mechanical System Not
Responding or Out of Adjustment
Air Compressor High Voltage DC/AC Inverter ‐ Abnormal Frequency or
Pulse Width or Period

SPN / FMI CumminseBay logo Description
(for Blue Bird Diagnostic display)
Air Compressor Inverter ‐ Not Responding
Air Comp Inverter ‐ Abnormal Signal
Air Compressor Inverter ‐ Cond Exists
TMS A/C Comp Inverter ‐ Bad Device
TMS A/C Comp Inverter ‐ Cause Unknown
TMS A/C Comp Inverter ‐ Out of Cal
TMS A/C Comp Inverter ‐ Rate of Change
TMS A/C Comp Inverter ‐ Special Notes

TMS A/C Comp Inverter ‐ Not Responding
TMS A/C Comp Inverter ‐ Abnormal Signal
TMS A/C Comp Inverter ‐ Cond Exists
Aux Heater Coolant Pump ‐ Voltage High
Aux Heater Coolant Pump ‐ Voltage Low
Fan 2 Drive State ‐ Voltage High
Fan 2 Drive State ‐ Voltage Low
Charge Port Receptacle1 ‐ Not Responding
HV Batt Heater Status ‐ Above Normal

EVSE DC Charging Volt Max ‐ Mod Severe

CumminseBay logo
Fault Code
#
14188
14189

Lamp (Service
Indicator)

J1939
SPN

J1939
FMI

Warning (Solid)
Warning (Solid)

520192
520193

9
9

14252

None

875

18

14253

None

605

18

14254

Stop (Solid)

520749

3

14255

Stop (Solid)

520749

4

14256

Warning (Solid)

520750

31

14257

Warning (Solid)

520750

3

14258
14259
14261

Warning (Solid)
Stop (Solid)
Stop (Solid)

520750
520751
520751

4
20
21

High Voltage Active Discharge driver ‐ Condition Exists
High Voltage Active Discharge driver ‐ Voltage Above Normal or
Shorted to High Source
High Voltage Active Discharge driver ‐ Voltage Below Normal or Shorted
to Low Source
Propulsion Motor 1 ‐ Data Not Rational ‐ Drifted High
Propulsion Motor 1 ‐ Data Not Rational ‐ Drifted Low

14262
14263

Stop (Solid)
Stop (Solid)

520752
520752

9
13

Propulsion Motor 1 Control Module ‐ Abnormal Update Rate
Propulsion Motor 1 Control Module ‐ Out of Calibration

14264

Stop (Solid)

520751

3

14265

None

520753

18

14266

Stop (Solid)

520753

1

14267

Stop (Solid)

520754

3

14268
14279
14284

Stop (Solid)
Warning (Blinking)
Warning (Solid)

520754
521209
13177

4
14
31

14313

Stop (Solid)

516107

6

14314

Stop (Solid)

516107

3

14315

Stop (Solid)

516107

2

14316

Stop (Solid)

516107

18

14317

Stop (Solid)

516107

16

14318

Stop (Solid)

516107

7

14319

Stop (Solid)

516109

1

Propulsion Motor 1 ‐ Voltage Above Normal or Shorted to High Source
Low SOC Error ‐ Data Valid But Below Normal Operating Range ‐
Moderately Severe Level
Low SOC Error ‐ Data Valid But Below Normal Operating Range ‐ Most
Severe Level
DC Charger Contactor Feedback Signal ‐‐ Voltage Above Normal or
Shorted to High Source

1...34567

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TSB/Document ID: SM2202

Replacement Service Bulletin Number:

MFR Communication Date: 2022-09-02

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: POWER TRAIN

MFR Component System:

MFR Component Subsystem:


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